wid-sec-w-2026-0947
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Published 2026-03-31
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View on BSI CERT-Bund ↗
CUPS: Multiple Vulnerabilities
CVSS 6.5
MEDIUM
Risk Summary
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, CUPS daemon (cupsd) contains an authorization bypass vulnerability due to case-insensitive username comparison during authorization checks. The vulnerability allows an unprivileged user to gain unauthorized access to restricted operations by using a user with a username that differs only in case from an authorized user. At time of publication, there are no publicly available patches.
Affected Vendors
Open Source
Affected Products (2)
Open Source
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CUPS
<2.4.17
Open Source
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CUPS
2.4.17
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